The Vertiv Liebert PSI5 Lithium-Ion UPS is designed to safeguard critical equipment in edge and distributed IT applications. The 1500VA UPS offers more than double the battery life of a traditional VLRA UPS, and comes with a five-year advanced replacement warranty. This Lithium-Ion battery backup includes AVR technology to extend battery life and provides protection from power disturbances. This line interactive UPS system has a rotating LCD display to allow both rack and tower configurations.